CN216439005U - Electric kettle liquid level detection probe - Google Patents
Electric kettle liquid level detection probe Download PDFInfo
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- CN216439005U CN216439005U CN202121214219.3U CN202121214219U CN216439005U CN 216439005 U CN216439005 U CN 216439005U CN 202121214219 U CN202121214219 U CN 202121214219U CN 216439005 U CN216439005 U CN 216439005U
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Abstract
The utility model discloses a liquid level detection probe of an electric kettle, wherein the liquid level detection probe of the electric kettle comprises an insulating probe shell, a first liquid level detection electrode plate, a second liquid level detection electrode plate and a liquid level detection chip; the insulating probe shell is provided with a connecting piece, and the connecting piece is used for fixing and installing the insulating probe shell in the electric kettle; the first liquid level detection electrode plate, the second liquid level detection electrode plate and the liquid level detection chip are respectively arranged in the insulating probe shell, and the first liquid level detection electrode plate and the second liquid level detection electrode plate are arranged at intervals and are opposite in position; the liquid level detection chip is provided with a first detection pin and a second detection pin, the first detection pin is electrically connected with the first liquid level detection electrode plate, and the second detection pin is electrically connected with the second liquid level detection electrode plate. The utility model does not release harmful metal substances, is easy to install, adopts an electrode plate electromagnetic field detection mode, and has high liquid level detection precision and high sensitivity.
Description
Technical Field
The utility model relates to the technical field of electric kettle liquid level detection, in particular to a liquid level detection probe of an electric kettle.
Background
At present, the liquid level detection probe and the method of the electric kettle mainly have two types: a resistance type liquid level detection probe and a method thereof, and a capacitance type liquid level detection probe and a method thereof. The resistance type liquid level detection device is disclosed in Chinese patent 201420061701.1, and is provided with a high and low water level detection unit connected with a power supply module and used for detecting high and low water levels in a measurement container and a middle water level detection unit used for detecting a middle water level in the measurement container; through the effect of mutual-inductor, can carry out the measurement of liquid level to the liquid of different resistance ranges, this kind of resistance-type liquid level detection device can only test high liquid level, well liquid level and low liquid level, can not realize linear liquid level detection, and easily releases harmful substance such as heavy metal, and long-term use can be harmful to the human body, and sensitivity is high inadequately, the accuracy is high inadequately.
The capacitance type liquid level detection device is disclosed in Chinese patent 201910888186.1, and comprises a liquid storage container, wherein a water level scale is arranged on the liquid storage container; the liquid storage container is provided with an induction electrode plate which is not in contact with liquid, the induction electrode plate is positioned at different height positions to form a water level scale, a distance L is formed between the induction electrode plate and the inner wall of the liquid storage container, and the distance L is suitable for the induction electrode plate to generate a capacitance value when the liquid reaches the corresponding height position; the capacitance type liquid level detection structure further comprises a chip module, wherein an operation chip is arranged on the chip module, and the operation chip is connected with more than one induction electrode slice. The capacitance type liquid level detection device can avoid the contact of the sensing electrode plate and liquid, prevent harmful substances such as heavy metal and the like from being released, avoid damaging human bodies, but can only test high liquid level, medium liquid level and low liquid level, cannot realize linear liquid level detection, and has low sensitivity and accuracy; in addition, the capacitance type liquid level detection device needs to be assembled in the kettle wall and is not easy to install.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide the electric kettle liquid level detection probe which does not release harmful metal substances, is easy to install, adopts an electrode plate electromagnetic field detection mode, and has high liquid level detection precision and high sensitivity according to the defects of the prior art.
In order to solve the above technical problems, a first technical solution of the present invention is: a liquid level detection probe of an electric kettle comprises an insulating probe shell, a first liquid level detection electrode plate, a second liquid level detection electrode plate and a liquid level detection chip; the insulating probe shell is provided with a connecting piece, and the connecting piece is used for fixing and installing the insulating probe shell in the electric kettle; the first liquid level detection electrode plate, the second liquid level detection electrode plate and the liquid level detection chip are respectively arranged in the insulating probe shell, and the first liquid level detection electrode plate and the second liquid level detection electrode plate are arranged at intervals and are opposite in position; the liquid level detection chip is provided with a first detection pin and a second detection pin, the first detection pin is electrically connected with the first liquid level detection electrode plate, and the second detection pin is electrically connected with the second liquid level detection electrode plate.
Preferably, the liquid level detection chip is an MDC04 chip, the first detection pin is an anode signal detection pin, the second detection pin is a cathode signal detection pin, and the liquid level detection chip further has a power supply access pin and a digital signal output pin; the first liquid level detection electrode slice is a positive liquid level detection electrode slice, and the second liquid level detection electrode slice is a negative liquid level detection electrode slice.
Preferably, an electrode plate insulating support is arranged in the insulating probe shell, electrode plate mounting grooves are respectively formed in two sides of the electrode plate insulating support, the first liquid level detection electrode plate is mounted in the electrode plate mounting groove in one side of the electrode plate insulating support, and the second liquid level detection electrode plate is mounted in the electrode plate mounting groove in the other side of the electrode plate insulating support; the electrode plate insulating support is cylindrical in overall shape, the electrode plate mounting grooves are arc-shaped grooves arranged along the length direction of the electrode plate insulating support, the two electrode plate mounting grooves are symmetrical to each other, and the shapes of the first liquid level detection electrode plate and the second liquid level detection electrode plate are respectively matched with the shapes of the electrode plate mounting grooves; the insulating probe shell comprises an insulating sleeve, and the electrode plate insulating support is inserted into the insulating sleeve; an upper sealing joint is inserted at the upper end of the insulating sleeve, and a lower sealing joint is inserted at the lower end of the insulating sleeve.
Preferably, the electrode plate insulating support is axially provided with a middle hole, the connecting piece comprises a connecting rod and a connecting cap, the connecting rod penetrates through the middle hole, the connecting cap is fixed at the upper end of the connecting rod and fastens the upper sealing joint, the lower end of the connecting rod is a threaded rod, and the threaded rod is used for being in threaded connection with the bottom of the electric kettle.
In order to solve the above technical problem, a second technical solution of the present invention is: a liquid level detection probe of an electric kettle comprises an insulating probe shell, at least three groups of detection electrode sheet sets and a liquid level detection chip, wherein the at least three groups of detection electrode sheet sets are sequentially arranged from top to bottom, each group of detection electrode sheet set comprises a first liquid level detection electrode sheet and a second liquid level detection electrode sheet respectively, and the first liquid level detection electrode sheet and the second liquid level detection electrode sheet of each group of detection electrode sheet sets are arranged at intervals and are opposite in position; the insulating probe shell is provided with a connecting piece, and the connecting piece is used for fixing and installing the insulating probe shell in the electric kettle; the liquid level detection chip and the first liquid level detection electrode plate and the second liquid level detection electrode plate of each group of detection electrode plate groups are respectively arranged in the insulating probe shell; the liquid level detection chip is provided with a first detection pin and a second detection pin, the first detection pin is electrically connected with the first liquid level detection electrode plate of each group of detection electrode plate groups, and the second detection pin is electrically connected with the second liquid level detection electrode plate of each group of detection electrode plate groups.
Preferably, the liquid level detection chip is an MDC04 chip, the first detection pin is an anode signal detection pin, the second detection pin is a cathode signal detection pin, and the liquid level detection chip further has a power supply access pin and a digital signal output pin; the first liquid level detection electrode slice is a positive liquid level detection electrode slice, and the second liquid level detection electrode slice is a negative liquid level detection electrode slice.
The utility model has the beneficial effects that: the liquid level detection probe of the electric kettle comprises an insulating probe shell, wherein an electrode plate is not contacted with liquid and does not release metal harmful substances into the liquid; secondly, the liquid level detection probe is provided with a first liquid level detection electrode plate, a second liquid level detection electrode plate and a liquid level detection chip, the liquid level detection chip of the detection probe can form a detection electromagnetic field through the first liquid level detection electrode plate and the second liquid level detection electrode plate, and can calculate the height of the liquid level in real time through the strength change of the detection electromagnetic field caused by charged ions in the liquid, so that the liquid level detection is accurately and continuously carried out; thirdly, the insulating probe shell is provided with a connecting piece, so that the insulating probe shell can be fixed and installed in the electric kettle, and the probe is easy to install. In addition, in the preferred mode of the utility model, the liquid level detection chip adopts an MDC04 chip, and the liquid level sensing can be realized by amplifying, digitally converting, compensating and calculating the tiny change of capacitance by utilizing the difference of dielectric constants of different substances; first liquid level detection electrode piece is anodal liquid level detection electrode piece, second liquid level detection electrode piece is negative pole liquid level detection electrode piece, and be equipped with electrode piece insulating support within the insulating probe casing, first liquid level detection electrode piece is installed within the electrode piece mounting groove of electrode piece insulating support one side, second liquid level detection electrode piece is installed within the electrode piece mounting groove of electrode piece insulating support opposite side, make first liquid level detection electrode piece and second liquid level detection electrode piece install within insulating casing steadily like this, can form stable electromagnetic field between first liquid level detection electrode piece and the second liquid level detection electrode piece.
Drawings
Fig. 1 is a schematic external structural view of a liquid level detection probe of an electric kettle in the first embodiment.
Fig. 2 is a schematic view of a dispersing structure of a liquid level detecting probe of an electric kettle in the first embodiment.
FIG. 3 is a schematic longitudinal sectional view of a probe for detecting a liquid level in an electric kettle according to a first embodiment.
Fig. 4 is an electrical connection schematic diagram of the first liquid level detection electrode sheet, the second liquid level detection electrode sheet, and the liquid level detection chip.
Fig. 5 is an external structural schematic diagram of a liquid level detection probe of an electric kettle in the second embodiment.
Fig. 6 is a schematic view of a dispersed structure of the liquid level detection probe of the electric kettle in the second embodiment.
Fig. 7 is an external structural schematic diagram of a liquid level detection probe of an electric kettle in the fourth embodiment.
FIG. 8 is a schematic view of a dispersing structure of the liquid level detecting probe of the electric kettle in the fourth embodiment.
In the figure: 1. an insulating probe housing; 11. an insulating sleeve; 12. an upper sealing joint; 13. a lower sealing joint; 2. a first liquid level detection electrode sheet; 3. a second liquid level detection electrode pad; 4. a liquid level detection chip; 5. a connecting member; 51. a connecting rod; 52. a connecting cap; 53. a threaded rod; 6. an electrode plate insulating support; 61. an electrode plate mounting groove; 62. a mesopore; 7. a fastener; 100. and detecting the electrode plate group.
Detailed Description
The structural and operational principles of the present invention are explained in further detail below with reference to the accompanying drawings.
Example one
As shown in fig. 1-3, with reference to fig. 4, the present invention is a liquid level detecting probe for an electric kettle, which comprises an insulating probe housing 1, a first liquid level detecting electrode plate 2, a second liquid level detecting electrode plate 3 and a liquid level detecting chip 4; the insulation probe shell 1 is provided with a connecting piece 5, and the connecting piece 5 is used for fixing and installing the insulation probe shell 1 in an electric kettle (not shown in the figure); the first liquid level detection electrode plate 2, the second liquid level detection electrode plate 3 and the liquid level detection chip 4 are respectively arranged in the insulating probe shell 1, and the first liquid level detection electrode plate 2 and the second liquid level detection electrode plate 3 are arranged at intervals and are opposite in position; the liquid level detection chip 4 is provided with a first detection pin C + and a second detection pin C-, the first detection pin C + is electrically connected with the first liquid level detection electrode plate 2, and the second detection pin C-is electrically connected with the second liquid level detection electrode plate 3.
The liquid level detection chip 4 is an MDC04 chip, the first detection pin C + is an anode signal detection pin, the second detection pin C-is a cathode signal detection pin, and the liquid level detection chip 4 is also provided with a power supply access pin VCC and a digital signal output pin Vout; the first liquid level detection electrode plate 2 is a positive liquid level detection electrode plate, and the second liquid level detection electrode plate 3 is a negative liquid level detection electrode plate. The MDC04 chip can realize liquid level sensing by amplifying, digitally converting, compensating and calculating the small change of capacitance by using the difference of dielectric constants of different substances, the first liquid level detection electrode plate 2 and the second liquid level detection electrode plate 3 are symmetrically arranged, and a stable electromagnetic field can be formed between the two electrode plates.
As shown in fig. 1 to 3, an electrode plate insulating support 6 is arranged in the insulating probe housing 1, electrode plate mounting grooves 61 are respectively arranged on two sides of the electrode plate insulating support 6, the first liquid level detection electrode plate 2 is mounted in the electrode plate mounting groove 61 on one side of the electrode plate insulating support 6, and the second liquid level detection electrode plate 3 is mounted in the electrode plate mounting groove 61 on the other side of the electrode plate insulating support 6; therefore, the first liquid level detection electrode plate and the second liquid level detection electrode plate are stably installed in the insulating shell. The electrode plate insulating support 6 is cylindrical in overall shape, the electrode plate mounting grooves 61 are arc-shaped grooves formed in the length direction of the electrode plate insulating support 6, the two electrode plate mounting grooves 61 are symmetrical to each other, and the shapes of the first liquid level detection electrode plate 2 and the second liquid level detection electrode plate 3 are respectively matched with the shapes of the electrode plate mounting grooves 61. The insulation probe shell 1 comprises an insulation sleeve 11, and the electrode plate insulation support 6 is inserted into the insulation sleeve 11; an upper sealing joint 12 is inserted at the upper end of the insulating sleeve 11, and a lower sealing joint 13 is inserted at the lower end of the insulating sleeve 11. The electrode plate insulating support 6 is axially provided with a middle hole 62, the connecting piece 5 comprises a connecting rod 51 and a connecting cap 52, the connecting rod 51 is arranged in the middle hole 62 in a penetrating mode, the connecting cap 52 is fixed at the upper end of the connecting rod 51 and fastens the upper sealing joint 12, the lower end of the connecting rod 51 is a threaded rod 53, and the threaded rod 53 is used for being in threaded connection with the bottom of the electric kettle. The lower end of the lower sealing joint 13 is also provided with a fastener 7.
Example two
As shown in fig. 5-6, with reference to fig. 4, the present invention is a liquid level detecting probe for an electric kettle, which comprises an insulating probe housing 1, a first liquid level detecting electrode plate 2, a second liquid level detecting electrode plate 3 and a liquid level detecting chip 4; the insulation probe shell 1 is provided with a connecting piece 5, and the connecting piece 5 is used for fixing and installing the insulation probe shell 1 in an electric kettle (not shown in the figure); the first liquid level detection electrode plate 2, the second liquid level detection electrode plate 3 and the liquid level detection chip 4 are respectively arranged in the insulating probe shell 1, and the first liquid level detection electrode plate 2 and the second liquid level detection electrode plate 3 are arranged at intervals and are opposite in position; the liquid level detection chip 4 is provided with a first detection pin C + and a second detection pin C-, the first detection pin C + is electrically connected with the first liquid level detection electrode plate 2, and the second detection pin C-is electrically connected with the second liquid level detection electrode plate 3.
The liquid level detection chip 4 is an MDC04 chip, the first detection pin C + is an anode signal detection pin, the second detection pin C-is a cathode signal detection pin, and the liquid level detection chip 4 is also provided with a power supply access pin VCC and a digital signal output pin Vout; the first liquid level detection electrode plate 2 is a positive liquid level detection electrode plate, and the second liquid level detection electrode plate 3 is a negative liquid level detection electrode plate. The MDC04 chip can realize liquid level sensing by amplifying, digitally converting, compensating and calculating the small change of capacitance by using the difference of dielectric constants of different substances, the first liquid level detection electrode plate 2 and the second liquid level detection electrode plate 3 are symmetrically arranged, and a stable electromagnetic field can be formed between the two electrode plates.
EXAMPLE III
The content of the embodiment is the liquid level detection method of the electric kettle liquid level detection probe in the first embodiment and the second embodiment, which comprises the following detection steps:
s1, the electric kettle is powered on, a liquid level detection chip of a detection probe forms a detection electromagnetic field between a first liquid level detection electrode plate and a second liquid level detection electrode plate, and the detection electromagnetic field is an electromagnetic field with fixed strength when the electric kettle is free of liquid;
s2, liquid in the electric kettle is lifted, and charged plasma in the liquid can penetrate through a detection electromagnetic field due to the difference of dielectric constants of the liquid and air, so that the detection electromagnetic field can be enhanced; in the liquid level rising process, charged plasmas are increased, and the detection electromagnetic field is enhanced along with the rising of the liquid level; in the liquid level descending process, the charged plasma is reduced, and the detection electromagnetic field is weakened along with the descending of the liquid level;
s4, the liquid level detection chip of the detection probe detects the enhanced signal or the weakened signal of the detection electromagnetic field, the liquid level change condition is obtained through calculation, the liquid level change condition is converted into a digital signal and output to an MCU control chip (not shown in the figure) of the electric kettle, and continuous liquid level detection of the electric kettle is achieved.
The liquid level detection chip inputs carrier signals with specific frequency to the first liquid level detection electrode plate 2 and the second liquid level detection electrode plate 3. The liquid level detection chip 4 detects that the enhanced signal and the weakened signal of the detection electromagnetic field are induced current signals respectively, the enhanced signal is a signal for increasing the induced current, and the weakened signal is a signal for weakening the induced current.
Example four
As shown in fig. 7-8, with reference to fig. 4, the present invention is a liquid level detection probe for an electric kettle, comprising an insulating probe housing 1, at least three sets of detection electrode plate sets 100 and a liquid level detection chip 4, wherein the four sets of detection electrode plate sets 100 are illustrated in the figure, the at least three sets of detection electrode plate sets 100 are arranged in sequence from top to bottom, each set of detection electrode plate set 100 comprises a first liquid level detection electrode plate 2 and a second liquid level detection electrode plate 3, and the first liquid level detection electrode plate 2 and the second liquid level detection electrode plate 3 of each set of detection electrode plate set 100 are arranged at intervals and are opposite in position; the insulation probe shell 1 is provided with a connecting piece 5, and the connecting piece 5 is used for fixing and installing the insulation probe shell 1 in an electric kettle (not shown in the figure); the liquid level detection chip 4 and the first liquid level detection electrode plate 2 and the second liquid level detection electrode plate 3 of each detection electrode plate group 100 are respectively arranged in the insulating probe shell 1; the liquid level detection chip 4 is provided with a first detection pin C + and a second detection pin C-, the first detection pin C + is electrically connected with the first liquid level detection electrode slice 2 of each group of detection electrode slice groups 100, and the second detection pin C-is electrically connected with the second liquid level detection electrode slice 3 of each group of detection electrode slice groups 100.
The liquid level detection chip 4 is an MDC04 chip, the first detection pin C + is an anode signal detection pin, the second detection pin C-is a cathode signal detection pin, and the liquid level detection chip 4 is also provided with a power supply access pin VCC and a digital signal output pin Vout; the first liquid level detection electrode plate 2 is a positive liquid level detection electrode plate, and the second liquid level detection electrode plate 3 is a negative liquid level detection electrode plate. The MDC04 chip can realize liquid level sensing by amplifying, digitally converting, compensating and calculating the tiny change of capacitance by utilizing the difference of dielectric constants of different substances, the first liquid level detection electrode plate 2 and the second liquid level detection electrode plate 3 are symmetrically arranged, and a stable electromagnetic field can be formed between the two electrode plates.
EXAMPLE five
The content of this embodiment is the liquid level detection method of the liquid level detection probe of the electric kettle in the fourth embodiment, which includes the following detection steps:
s1, the electric kettle is powered on, a liquid level detection chip of a detection probe enables a detection electromagnetic field to be formed between a first liquid level detection electrode plate and a second liquid level detection electrode plate of each group of detection electrode plate groups respectively, and the detection electromagnetic fields of each group of detection electrode plate groups are electromagnetic fields with fixed strength when the electric kettle is free of liquid;
s2, liquid in the electric kettle is lifted, and charged plasma in the liquid can penetrate through a detection electromagnetic field due to the difference of dielectric constants of the liquid and air, so that the detection electromagnetic field can be enhanced; in the liquid level rising process, when liquid appears around any group of detection electrode plate groups, charged plasmas around the group of detection electrode plate groups are increased, so that the detection electromagnetic field of the group of detection electrode plate groups is enhanced; in the liquid level descending process, when liquid around any group of detection electrode plate groups disappears, the charged plasma around the group of detection electrode plate groups is reduced, so that the detection electromagnetic field of the group of detection electrode plate groups is weakened;
s4, the liquid level detection chip of the detection probe detects the enhanced signal or the weakened signal of the detection electromagnetic field of each group of detection electrode plate groups, calculates the position of which group of detection electrode plate group the liquid level is located in, converts the position into a digital signal and outputs the digital signal to the MCU control chip of the electric kettle, and achieves liquid level detection of the electric kettle.
The liquid level detection chip inputs carrier signals with specific frequency to the first liquid level detection electrode slice 2 and the second liquid level detection electrode slice 3. The liquid level detection chip 4 detects that the enhancement signal and the weakening signal of the detection electromagnetic field are respectively an induced current signal, the enhancement signal is a signal for increasing the induced current, and the weakening signal is a signal for weakening the induced current.
The above description is only a preferred embodiment of the present invention, and all the minor modifications, equivalent changes and modifications made to the above embodiment according to the technical solution of the present invention are within the scope of the technical solution of the present invention.
Claims (8)
1. The utility model provides an insulating pot liquid level detection probe which characterized in that: the liquid level detection device comprises an insulating probe shell, a first liquid level detection electrode plate, a second liquid level detection electrode plate and a liquid level detection chip; the insulating probe shell is provided with a connecting piece, and the connecting piece is used for fixing and installing the insulating probe shell in the electric kettle; the first liquid level detection electrode plate, the second liquid level detection electrode plate and the liquid level detection chip are respectively arranged in the insulating probe shell, and the first liquid level detection electrode plate and the second liquid level detection electrode plate are arranged at intervals and are opposite in position; the liquid level detection chip is provided with a first detection pin and a second detection pin, the first detection pin is electrically connected with the first liquid level detection electrode plate, and the second detection pin is electrically connected with the second liquid level detection electrode plate.
2. The probe for detecting the liquid level in an electric kettle according to claim 1, wherein: the liquid level detection chip is an MDC04 chip, the first detection pin is an anode signal detection pin, the second detection pin is a cathode signal detection pin, and the liquid level detection chip is also provided with a power supply access pin and a digital signal output pin; the first liquid level detection electrode slice is a positive liquid level detection electrode slice, and the second liquid level detection electrode slice is a negative liquid level detection electrode slice.
3. The probe for detecting the liquid level of the electric kettle as claimed in claim 1, wherein: the liquid level detection probe comprises an insulating probe shell, and is characterized in that an electrode plate insulating support is arranged in the insulating probe shell, electrode plate mounting grooves are formed in two sides of the electrode plate insulating support respectively, a first liquid level detection electrode plate is mounted in the electrode plate mounting groove in one side of the electrode plate insulating support, and a second liquid level detection electrode plate is mounted in the electrode plate mounting groove in the other side of the electrode plate insulating support.
4. A probe for detecting the liquid level in an electric kettle according to claim 3, wherein: the electrode plate insulating support is cylindrical in overall shape, the electrode plate mounting grooves are arc-shaped grooves formed in the length direction of the electrode plate insulating support, the two electrode plate mounting grooves are symmetrical to each other, and the shapes of the first liquid level detection electrode plate and the second liquid level detection electrode plate are respectively matched with the shapes of the electrode plate mounting grooves.
5. An electric kettle liquid level detection probe as claimed in claim 4, wherein: the insulating probe shell comprises an insulating sleeve, and the electrode plate insulating support is inserted into the insulating sleeve; an upper sealing joint is inserted at the upper end of the insulating sleeve, and a lower sealing joint is inserted at the lower end of the insulating sleeve.
6. An electric kettle liquid level detection probe as claimed in claim 5, wherein: the electrode slice insulating support is axially provided with a middle hole, the connecting piece comprises a connecting rod and a connecting cap, the connecting rod is arranged in the middle hole in a penetrating mode, the connecting cap is fixed at the upper end of the connecting rod and fastens the upper sealing joint, the lower end of the connecting rod is a threaded rod, and the threaded rod is used for being in threaded connection with the bottom of the electric kettle.
7. The utility model provides an insulating pot liquid level detection probe which characterized in that: the liquid level detection device comprises an insulating probe shell, at least three groups of detection electrode sheet sets and a liquid level detection chip, wherein the at least three groups of detection electrode sheet sets are sequentially arranged from top to bottom, each group of detection electrode sheet set comprises a first liquid level detection electrode sheet and a second liquid level detection electrode sheet respectively, and the first liquid level detection electrode sheet and the second liquid level detection electrode sheet of each group of detection electrode sheet set are arranged at intervals and are opposite in position; the insulating probe shell is provided with a connecting piece, and the connecting piece is used for fixing and installing the insulating probe shell in the electric kettle; the liquid level detection chip and the first liquid level detection electrode plate and the second liquid level detection electrode plate of each group of detection electrode plate groups are respectively arranged in the insulating probe shell; the liquid level detection chip is provided with a first detection pin and a second detection pin, the first detection pin is electrically connected with the first liquid level detection electrode plate of each group of detection electrode plate groups, and the second detection pin is electrically connected with the second liquid level detection electrode plate of each group of detection electrode plate groups.
8. An electric kettle liquid level detection probe as claimed in claim 7, wherein: the liquid level detection chip is an MDC04 chip, the first detection pin is an anode signal detection pin, the second detection pin is a cathode signal detection pin, and the liquid level detection chip is also provided with a power supply access pin and a digital signal output pin; the first liquid level detection electrode slice is a positive liquid level detection electrode slice, and the second liquid level detection electrode slice is a negative liquid level detection electrode slice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121214219.3U CN216439005U (en) | 2021-06-02 | 2021-06-02 | Electric kettle liquid level detection probe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121214219.3U CN216439005U (en) | 2021-06-02 | 2021-06-02 | Electric kettle liquid level detection probe |
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| CN216439005U true CN216439005U (en) | 2022-05-06 |
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| CN202121214219.3U Active CN216439005U (en) | 2021-06-02 | 2021-06-02 | Electric kettle liquid level detection probe |
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2021
- 2021-06-02 CN CN202121214219.3U patent/CN216439005U/en active Active
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